package com.sky.handler;

import com.sky.constant.MessageConstant;
import com.sky.exception.BaseException;
import com.sky.result.Result;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.sql.SQLIntegrityConstraintViolationException;

/**
 * 全局异常处理器，处理项目中抛出的业务异常
 */
@RestControllerAdvice
@Slf4j
public class GlobalExceptionHandler {

    /**
     * 捕获业务异常
     * @param ex
     * @return
     */
    @ExceptionHandler
    public Result exceptionHandler(BaseException ex){
        log.error("异常信息：{}", ex.getMessage());
        return Result.error(ex.getMessage());
    }
//    @ExceptionHandler(Exception.class)
//    public Result exceptionHandler(Exception ex){
//        log.error("捕获数据库违反唯一约束异常：{}", ex.getMessage());
//        return Result.error(ex.getMessage());
//    }

    /**
     * 捕获数据库违反唯一约束异常
     * @param ex
     * @return
     */
    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public Result exceptionHandler(SQLIntegrityConstraintViolationException ex){
        log.error("捕获数据库违反唯一约束异常：{}", ex.getMessage());
         String message = ex.getMessage();

         if (StringUtils.isNotEmpty(message)&&message.contains("Duplicate entry")){

              String[] split = message.split(" ");
              if (split.length>=2){
                   String s = split[2];
                   return Result.error(MessageConstant.ALREADYEXISTS +s);
              }
         }


        return Result.error(ex.getMessage());
    }
}
